package com.gcgo.serial;

import io.netty.buffer.ByteBuf;
import io.netty.channel.ChannelHandlerContext;
import io.netty.handler.codec.MessageToByteEncoder;

public class RpcEncoder extends MessageToByteEncoder {
    private Class<?> clazz;
    private Serializer serializer;

    public RpcEncoder(Class<?> clazz, Serializer serializer) {
        this.clazz = clazz;
        this.serializer = serializer;
    }

    @Override
    protected void encode(ChannelHandlerContext channelHandlerContext, Object msg, ByteBuf byteBuf) throws Exception {
        if (clazz != null && clazz.isInstance(msg)) {
            byte[] bytes = serializer.serialize(msg);
            byteBuf.writeInt(bytes.length);
            byteBuf.writeBytes(bytes);
//            System.out.println("编码器运行了");
        }
    }

    //    protected void encode(ChannelHandlerContext channelHandlerContext, Object msg, ByteBuf byteBuf) throws Exception {
    //        if (clazz != null && clazz.isInstance(msg)) {
    //            byte[] bytes = serializer.serialize(msg);
    //            byteBuf.writeInt(bytes.length);
    //            byteBuf.writeBytes(bytes);
    //            System.out.println("编码器运行了");
    //        }
    //    }

}
